𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Multiphasic Growth Models and the Evolution of Prolonged Growth Exemplified by Human Brain Evolution

✍ Scribed by E.S. Vrba


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
257 KB
Volume
190
Category
Article
ISSN
0022-5193

No coin nor oath required. For personal study only.

✦ Synopsis


New models for multiphasic growth are presented. They are illustrated by analysis of brain growth in humans and chimpanzees, and the results are used to test the hypothesis of evolution by proportional growth prolongation: that all descendant growth phases are extended by the same factor while each remains at the ancestral growth rate. The results are consistent with the hypothesis and imply that gross brain weight increase towards humans required change in only one growth parameter: prolongation of the nonlinear ancestral growth phases. The restricted and orderly nature of the developmental changes hints at a basis in few genetic changes. Proportional growth prolongation is of general evolutionary importance because it can reorganize body proportions.


πŸ“œ SIMILAR VOLUMES


Evaluation of synergism by a novel three
✍ Fumihiko Kanzawa; Kazuto Nishio; Kazuya Fukuoka; Minoru Fukuda; Takehiko Kunimot πŸ“‚ Article πŸ“… 1997 πŸ› John Wiley and Sons 🌐 French βš– 206 KB πŸ‘ 2 views

Although the combination of cisplatin and etoposide has been used as standard therapy for small-cell lung cancer, it is difficult to demonstrate combination effects between cisplatin and etoposide in vitro. We therefore adopted a 3-dimensional (3-D) model to analyze the combination effects of antica